You are viewing a plain text version of this content. The canonical link for it is here.
Posted to general@xml.apache.org by "Samson, Lyndon [IT]" <ly...@ssmb.com> on 2001/04/09 18:22:58 UTC
RE: Strange XSLT behaviour - Obliq apol for SOT
But what has summing to do with rounding? Not really intimatly related are
they?
The standed rules for rounding ie those used by java's Math.round;
System.out.println(Math.round(9.5));
System.out.println(Math.round(10.5));
System.out.println(Math.round(11.5));
System.out.println(Math.round(12.5));
produces;
10
11
12
13
...
-----Original Message-----
From: Robert Stuart [mailto:Robert.Stuart@NFER-NELSON.co.uk]
Sent: Monday, April 09, 2001 5:14 PM
To: 'general@xml.apache.org'
Cc: 'lyndon.samson@ssmb.com'
Subject: RE: Strange XSLT behaviour
Yes ... but
9.5 + 10.5 + 11.5 + 12.5 = 34
10 + 11 + 12 + 13 = 36 (ie wrong)
10 + 10 + 12 + 12 = 34
Hence this type of rounding
-----Original Message-----
From: Samson, Lyndon [IT] [mailto:lyndon.samson@ssmb.com]
Sent: 09 April 2001 16:55
To: 'general@xml.apache.org'
Subject: RE: Strange XSLT behaviour
I would have expected
9.5 => 10
10.5 => 11
11.5 => 12
12.5 => 13
Ie what I remember to be standard rounding rules. I could probably work
around it
by adding 0.1 but thats a definitive 'dodgy hack' :-)
-----Original Message-----
From: Maksim Sakki [mailto:maksim.sakki@hansa.ee]
Sent: Monday, April 09, 2001 4:42 PM
To: 'general@xml.apache.org'
Subject: RE: Strange XSLT behaviour
Hi,
The given behaviour is exactly what you get when writing
"format-number(9.5,'00')".
If you want to format numbers keeping 2 decimal places, you should write
"format-number(9.5,'0.00')".
Maksim Sakki
-----Original Message-----
From: Samson, Lyndon [IT] [mailto:lyndon.samson@ssmb.com]
Sent: 09. aprill 2001. a. 17:34
To: general@xml.apache.org
Subject: Strange XSLT behaviour
Using xalan-j_2_0_0
I've noticed some funny behaviour in xalan.
When given this;
<xsl:value-of select="format-number(9.5,'00')"/> +
<xsl:value-of select="format-number(10.5,'00')"/> +
<xsl:value-of select="format-number(11.5,'00')"/> +
<xsl:value-of select="format-number(12.5,'00')"/>
It returns something like this;
10 + 10 + 12 + 12
That is all the odd numbers are rounded up and even numbers are rounded
down.
The W3c spec refers to the java.text.DecimalFormat class
This test code;
public void pNum(double num) {
java.text.FieldPosition fp = new
java.text.FieldPosition(java.text.NumberFormat.FRACTION_FIELD);
StringBuffer sb = new StringBuffer();
java.text.DecimalFormat df = new java.text.DecimalFormat("00");
sb = df.format(num, sb, fp);
System.out.println("SB:"+sb.toString());
}
pNum(9.5);
pNum(10.5);
pNum(11.5);
pNum(12.5);
produces;
SB:10
SB:10
SB:12
SB:12
The same situation! The only question is this a bug or a feature? Maybe my
mathematical memory is faulty
and this is the standard way of rounding to integers?
---------------------------------------------------------------------
In case of troubles, e-mail: webmaster@xml.apache.org
To unsubscribe, e-mail: general-unsubscribe@xml.apache.org
For additional commands, e-mail: general-help@xml.apache.org
---------------------------------------------------------------------
In case of troubles, e-mail: webmaster@xml.apache.org
To unsubscribe, e-mail: general-unsubscribe@xml.apache.org
For additional commands, e-mail: general-help@xml.apache.org
---------------------------------------------------------------------
In case of troubles, e-mail: webmaster@xml.apache.org
To unsubscribe, e-mail: general-unsubscribe@xml.apache.org
For additional commands, e-mail: general-help@xml.apache.org
---------------------------------------------------------------------
In case of troubles, e-mail: webmaster@xml.apache.org
To unsubscribe, e-mail: general-unsubscribe@xml.apache.org
For additional commands, e-mail: general-help@xml.apache.org